Low coolant level - JeepForum.com
 
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post #1 of 15 Old 02-11-2007, 12:27 PM Thread Starter
kopite77
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Low coolant level

Hi, i'm an absolute beginner when it comes to jeeps, so apologies for the basic question.
I got into my car this morning and it flashed up low coolant level on the overhead display. I checked the coolant and it is at the add more to it level.
What i need is someone to give me a step by step guide how i go about draining it and re-filling it.
what coolant do i need etc.
My jeep is a grand cherokee 2000 limite uk model. any help appreciated. thanks in advance.

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post #2 of 15 Old 02-11-2007, 01:40 PM
1995zj
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u just need to fill the coolant resevoir tank, mine went off the other day but my tank was low filled it an it went off

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post #3 of 15 Old 02-11-2007, 01:49 PM
SlimGoaty
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If you want to totally drain everything and replace with you need to loosen the draincock (bottom of radiator) and pull the engine plug. Not sure where its at on the WJ but its just a little screw in the side of the block on the ZJ's. If you want to speed things up just pull the bottom radiator hose (when cold) and everything will come out in a hurry. Tighten everything back up. Then fill the radiator with coolant and water until she won't take anymore. Turn the jeep on and wait for the t-stat to open and take in all the coolant. At that point you'll need to add more water until once again she is full. Then fill up your resivor and all it macaroni.



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post #4 of 15 Old 02-11-2007, 02:12 PM
GreenDean
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1. Open radiator cap
2. Grab front bumper firmly.
3. Flip Jeep counter clockwise.
4. Allow radiator to drain.
5. Flip Jeep back on wheels clockwise.
6. Fill radiator.
7. Put cap back on radiator.

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post #5 of 15 Old 02-11-2007, 02:39 PM
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Brilliant!



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post #6 of 15 Old 02-11-2007, 03:02 PM
Turbonut
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Quote:
Originally Posted by kopite77
I got into my car this morning and it flashed up low coolant level on the overhead display. I checked the coolant and it is at the add more to it level.
What i need is someone to give me a step by step guide how i go about draining it and re-filling it.
what coolant do i need etc.
My jeep is a grand cherokee 2000 limite uk model. any help appreciated. thanks in advance.
As stated in above thread, just lift the plastic lid on the reservoir and add coolant (straight antifreeze, or a 50/50 mix), however, if it's low the coolant has gone somewhere. Keep an eye on the level and check for leaks around the engine radiator and under the Jeep. If Jeep is parked in garage, spread blue paper towels all over the floor under the Jeep and check to see if any area is wet. Wet areas on blue much easier to see than wet area on white towels.
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post #7 of 15 Old 02-11-2007, 03:14 PM
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a wj must be turn in a clock wise direction, first . then continue in the same clockwise direction to right the jeep

just add a 5o / 5o mix to the tank

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post #8 of 15 Old 02-11-2007, 04:03 PM
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buy a prestone flush kit and follow the directions on the back. this also has you flush the heater core. buy the green coolant or the prestone stuff that you can mix with any coolant. there is no better way or additional advice you should need.


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post #9 of 15 Old 02-11-2007, 05:29 PM
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Had the same problem yesterday with my 99GCL, driveway is slight angle, also when I backed out, killed the engine and restarted, that cleared, but the reservoir was low, so, filled it, and no more low coolant light.
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post #10 of 15 Old 02-12-2007, 04:31 AM Thread Starter
kopite77
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I don't know what coolant has been used originally. can i top up with any blue coloured coolant?
I've just spoken to my local garage guy who services the car for me and he said now the weather is getting better, i might as well top it up with water. its due a service in about 4500 miles so i guess they will drain it and re fill it then anyway. would this be ok?
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post #11 of 15 Old 02-12-2007, 06:26 AM
SJZ
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Quote:
Originally Posted by kopite77
I don't know what coolant has been used originally. can i top up with any blue coloured coolant?
I've just spoken to my local garage guy who services the car for me and he said now the weather is getting better, i might as well top it up with water. its due a service in about 4500 miles so i guess they will drain it and re fill it then anyway. would this be ok?
By "blue coolant", I hope you don't mean winshield washer antifreeze!
Coolant system antifreeze (ethylene glycol..which is what you should be using) is usually green or red in color. Use Prestone, or Peak or some such brand. If the weather is cold by you, the level may show low without having a leak. This is the result of cold coolant having less volume than warm coolant.
As others have posted, it's not necessary to drain anything just because the level is low. Merely add (as turbinut says) to the coolant tank (near the firewall on the right side {passenger side in U.S.}). Add until the level is half way between add and full.

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post #12 of 15 Old 02-12-2007, 08:10 AM Thread Starter
kopite77
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Quote:
Originally Posted by SJZ
By "blue coolant", I hope you don't mean winshield washer antifreeze!
Coolant system antifreeze (ethylene glycol..which is what you should be using) is usually green or red in color. Use Prestone, or Peak or some such brand. If the weather is cold by you, the level may show low without having a leak. This is the result of cold coolant having less volume than warm coolant.
As others have posted, it's not necessary to drain anything just because the level is low. Merely add (as turbinut says) to the coolant tank (near the firewall on the right side {passenger side in U.S.}). Add until the level is half way between add and full.
yup, i did mean coolant antifreeze.On the back of the bottles it says not to mix them.would i be ok buying a small bottle of any brand if they dont have the one you recommend and top up with that?
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post #13 of 15 Old 02-12-2007, 08:44 AM
Turbonut
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Quote:
Originally Posted by SJZ
If the weather is cold by you, the level may show low without having a leak. This is the result of cold coolant having less volume than warm coolant.
The contraction of water is so miniscule, I don't believe it would make a difference. Maybe 2 ozs. over 40 degrees.

Just to top off the coolant it will be fine, as you probably aren't certain as to what type antifreeze is in the Jeep now, unless you're the original owner.
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post #14 of 15 Old 02-12-2007, 09:09 AM
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that was funny for a Monday AM!!! damn sure sounds easier sometimes!

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post #15 of 15 Old 02-12-2007, 09:53 AM
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Quote:
Originally Posted by Turbonut
The contraction of water is so miniscule, I don't believe it would make a difference. Maybe 2 ozs. over 40 degrees.
You're right, but if the level was right at the alarm point, and there was a dip in temperatures, it could give the low level indication.

-Steve
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